This paper presents a robust sniper localization technique based on the time of arrival of the shock waves, unlike the conventional methods that need both muzzle blast and shock wave. In the proposed work, a two-dimensional array geometry is considered to get rid of solving non-linear equations, as in the case of the linear array. Since the bullet’s velocity is not constant throughout the trajectory, the deceleration parameter is also considered in the proposed work to improve the accuracy compared to conventional methods. The time of arrival of the shock waves are measured from the generalized cross correlation phase transform (GCC-PHAT) between microphone signal recordings. Extensive simulations are carried out for the proposed work and to compare it with the baseline method. The performance of the proposed method is observed to be better than the previous method.